Build (method = -2) #dp: 657 Step-3' Graph: 134 vertices and 395 arcs (0.00s) Step-4' Graph: 37 vertices and 201 arcs (0.00s) #V4/#V3 = 0.28 #A4/#A3 = 0.51 Ready! (0.00s) Optimize a model with 76 rows, 202 columns and 536 nonzeros Presolve removed 24 rows and 33 columns Presolve time: 0.00s Presolved: 52 rows, 169 columns, 450 nonzeros Variable types: 0 continuous, 169 integer (0 binary) Found heuristic solution: objective 318.0000000 Found heuristic solution: objective 309.0000000 Optimize a model with 52 rows, 169 columns and 450 nonzeros Presolved: 52 rows, 169 columns, 450 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.240e+02 Factor NZ : 6.420e+02 Factor Ops : 9.618e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.80322596e+03 -2.51528832e+03 5.81e+03 2.22e-16 5.08e+01 0s 1 6.21902586e+02 -9.50049271e+02 7.13e+02 6.66e-16 8.23e+00 0s 2 3.22696567e+02 -6.32765056e+01 2.72e+01 1.11e-15 1.16e+00 0s 3 2.52374193e+02 1.91258601e+02 6.58e-01 6.38e-16 1.72e-01 0s 4 2.37169979e+02 2.19951207e+02 1.47e-01 6.52e-16 4.83e-02 0s 5 2.34818629e+02 2.32413920e+02 5.03e-02 7.77e-16 6.75e-03 0s 6 2.33508077e+02 2.33491682e+02 2.05e-04 5.66e-16 4.60e-05 0s 7 2.33500000e+02 2.33500000e+02 2.39e-10 6.14e-16 6.14e-11 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 2.33500000e+02 Root relaxation: objective 2.335000e+02, 85 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 233.50000 0 11 309.00000 233.50000 24.4% - 0s H 0 0 234.0000000 233.50000 0.21% - 0s Explored 0 nodes (95 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.340000000000e+02, best bound 2.340000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 234 Solution: 1 x [1] 6 x [2] 16 x [3] 6 x [4] 7 x [4, 39] 12 x [5] 1 x [6] 12 x [7, 38] 19 x [8] 5 x [9, 38] 19 x [10] 2 x [11, 36] 1 x [12, 33] 10 x [13, 33] 2 x [14, 29] 1 x [14, 30] 12 x [15, 28] 15 x [16, 26] 14 x [17, 23] 1 x [17, 25] 4 x [17, 29] 8 x [18, 29] 10 x [19, 25] 6 x [20, 24] 11 x [21, 22] 3 x [21, 24] 4 x [22, 24] 2 x [25, 26] 6 x [27, 33, 37] 7 x [28, 33] 1 x [30] 1 x [30, 32, 36] 1 x [30, 32, 38] 3 x [30, 33] 1 x [31, 32, 34] 3 x [31, 32, 35] 1 x [32, 33, 34]